<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
		<script src="https://unpkg.com/vue/dist/vue.js"></script>
	</head>
	<body>
		<div id="app15">
			<button v-on:click="num += 1">增加1</button>
			<p>按钮被点击{{num}}次</p>
		</div>
		
	</body>
	<script>
		var app15=new Vue({
		  el: '#app15',
		  data: {
		  	num:0
		  }
	})
	</script>
</html>
